Airborne signalling by methyl salicylate in plant pathogen resistance

@article{Shulaev1997AirborneSB,
  title={Airborne signalling by methyl salicylate in plant pathogen resistance},
  author={Vladimir Shulaev and Paul M. Silverman and Ilya Raskin},
  journal={Nature},
  year={1997},
  volume={385},
  pages={718-721}
}
Methyl salicylate, a volatile liquid, also known as oil of winter-green, is made by a number of plants1–9. Here we show that methyl salicylate is a major volatile compound produced by tobacco plants inoculated with tobacco mosaic virus. Methyl salicylate is synthesized from salicylic acid, a non-volatile chemical signal required for the establishment of acquired resistance10 and local and systemic induction of antimicrobial pathogenesis-related proteins11. Methyl salicylate acts by being… 
Degradation of the plant defence hormone salicylic acid by the biotrophic fungus Ustilago maydis
TLDR
Shy1, a cytoplasmic U. maydis salicylate hydroxylase which has orthologues in the closely related smuts Ustilago hordei and Sporisorium reilianum is identified, suggesting the possibility of a SA sensing mechanism in this fungus.
Evidence for Volatile Memory in Plants: Boosting Defence Priming through the Recurrent Application of Plant Volatiles
TLDR
The concept of plant memory of plant defence volatiles is proposed and it is suggested that SAR is strengthened by the repeated perception of volatile compounds in plants.
Metabolism of airborne methyl salicylate in adjacent plants
TLDR
It was found that SA glucose ester (SAGE), ether (SAG), and salicyloyl-L-aspartic acid (SA-Asp) are metabolites of airborne MeSA, and it was discovered that airborne Me SA was able to increase the endogenous amount of rosmarinic acid in Perilla frutescens, which is known as one of the functional components that contributes to the maintenance of human health.
Endogenous Methyl Salicylate in Pathogen-Inoculated Tobacco Plants
TLDR
Tissue MeSA may play a role similar to that of volatile MeSA in the pathogen-induced defense response in TMV-inoculated tobacco plants, based on the spatial and temporal kinetics of its accumulation.
Methyl Salicylate Is a Critical Mobile Signal for Plant Systemic Acquired Resistance
TLDR
It is shown that the methyl salicylate (MeSA) esterase activity of salicylic acid–binding protein 2 (SABP2), which converts MeSA into salicyric acid (SA), is required for SAR signal perception in systemic tissue, the tissue that does not receive the primary infection.
Roles of plant volatiles in defense against microbial pathogens and microbial exploitation of volatiles.
TLDR
This review critically evaluates current knowledge on the toxicity of volatiles to fungi, bacteria and viruses and their role in plant resistance as well as how they act to induce systemic resistance in uninfected parts of the plant and in neighboring plants.
Tobacco mosaic virus inoculation inhibits wound-induced jasmonic acid-mediated responses within but not between plants
TLDR
It is concluded that tobacco plants, when inoculated with TMV, are unable to elicit normal wound responses, due likely to the inhibition of JA production by the systemic increase in SA induced by virus-inoculation.
Methyl Salicylate Production and Jasmonate Signaling Are Not Essential for Systemic Acquired Resistance in Arabidopsis[W]
TLDR
MeSA is dispensable for SAR in Arabidopsis, and SA accumulation in distant leaves appears to occur by de novo synthesis via isochorismate synthase, and it is shown that MeSA production induced by P. syringae depends on the JA pathway but that JA biosynthesis or downstream signaling is not required for SAR.
Methyl Salicylate Glucosylation Regulates Plant Defense Signaling and Systemic Acquired Resistance1
TLDR
The results suggest that MeSA glucosylation by UGT71C3 facilitates negative regulation of the SAR response by modulating homeostasis of MeSA and SA.
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